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Nails - Ch 10 & 11 - Chemistry Basics
Pure water has a _____ pH.
The head of the surfactant molecule is:
Nails - Ch 10 & 11 - Chemistry Basics
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1
The head of the surfactant molecule is:
hydrophilic
both!
lipophilic
neither
2
Pure water has a _____ pH.
acidic
neutral
negative
alkaline
3
There are 80 naturally occuring elements.
False
True
4
What is the first step to prepping the nails?
remove shine
wash and scrub hands/nails
use nail dehydrator
use a hand sanitizer
5
Nail enhancements are not designed to be taken off more than:
twice a month
once a month
twice a year
once a year
6
Which is not a type of primer?
acid free
acid based
nonacid
dual acid
7
Which of these determines toxicity?
underexposure
overexposure
ingredients
temperature
8
What are used to keep nail products flexible?
monomers
pigments
UV stabilizers
plasticizers
9
Glycerin is:
used as a solvent in body creams
a colorful, dry substance
a bitter substance
dark in color
10
Coatings that harden upon evaporation undergo a _____ reaction
chemical
physical
lipophilic
hydrophilic
11
What is O
3?
ozone
carbon dioxide
oxy clean
oxygen
12
What is an atom carrying an electrical charge called?
proton
neutron
ion
electron
13
When an initiator touches a monomer, it excites with a boost of energy.
False
True
14
MMA monomer nail products do not adhere to the nail plate without:
shredding the plate
dissolving the nail plate
smoothing the nail plate
breaking the natural nail
15
Hair and skin have an average pH of:
9
5
3
7
16
Problems related to nail enhancements are typically not caused by:
improper nail plate prep
product quality
unlicensed technicians
improper application
17
What is an example of a cyanoacrylate?
UV gels
none
both answers
nail adhesives
18
What is the simplest form of chemical matter?
energy
a particle
a molecule
an element
19
What is formed when a liquid evaporates?
a solid
a gas
a vapor
an emulsion
20
What is a substance formed by combining many small molecules in extremely long, chainlike structures?
cross linker
monomer
polymer
oligomer
21
The products in evaporation coatings:
contain oligomers
polymerize quickly
polymerize slowly
contain volatile ingredients
22
How many molecules must react to make a single sculptured nail?
a few
millions
a thousand
trillions
23
What is mayonnaise an example of?
a solution
a suspension
a water in oil emulsion
an oil in water emulsion
24
All nail adhesives and wraps are based on:
acrylates
cyanoacrylates
methacrylates
crimsoacrylates
25
What is known as the universal solvent?
oxygen
oil
acid
water
26
Any substance that occupies space and has mass?
organic
matter
inorganic
chemical
27
What do organic substances need to burn?
hydrogen and oxygen
oxygen and carbon
carbon and hydrogen
carbon
28
Polymer chains:
are easily unraveled by solvents
cannot be unraveled by force
are not easily removed
are not easily damaged by sharp impacts
29
What is the force of nature that makes two surfaces stick together?
cohesion
adhesion
attraction
repulsion
30
The thinner the nail plate, the _______ it will be.
longer
weaker
stronger
shorter
31
Organic means a substance containing both carbon and hydrogen from natural or a ________ source
healthy
homegrown
synthetic
man made
32
What is the chemical reaction that releases a significant amount of heat released?
exothermic reaction
chemical reaction
endothermic reaction
physical reaction
33
What is a short chain of monomers that has had its growth halted before it could become a polymer?
acrylic
catalyst
an oligomer
cross-linker
34
All nail enhancements become stronger during the first ____ hours.
48
72
24
2
35
An ion with a negative charge is called?
a VOC
an anion
a proton
a cation
36
What causes an atom or molecule to split into two, creatnig a pair of ions?
atomic divison
meosis
mitosis
ionization
37
Which is not matter?
soil
wood
light
water
38
Liquid has a definite shape and volume.
False
True
39
What is true of emulsions?
separate very slowly over time
separate somewhat quickly
never separate
separate immediately
40
In medieval times, alchemists searched for ways to?
turn lead into gold
make valuable items invisible
make metals invisible
turn silver into gold
41
Overfiling will not lead to:
breakage
free edge chipping
nail growth
lifting
42
Inorganic chemistry is the study of substances that
contain hydrogen and carbon
do not contain carbon but may hydrogen
do not contain hydrogen but may carbon
contain nothing
43
Physical mixtures that contain two or more different substances are called:
Suspensions
Emulsions
Solutions
All of the above
44
What is an example of an acrylate?
monomer powders
acetone
UV gels
monomer liquids
45
What improves adhesion?
plasticizers
adhesives
primers
monomers
46
Which of these are immiscible liquids?
water and oil
acetone and water
peroxide and alcohol
water and alcohol
47
Science that deals with the composition, structures, and properties of matter & how matter changes?
Biology
Chemistry
Astronomy
Organic chemistry
48
What is a chemical combination of matter, in definite proportions?
physical mixture
none
both
pure substance
49
If a substance is high in hydrogen ions, it is?
very acidic
very alkaline
water
a neutral
50
Corrosive primers can cause painful burns and what if they reach the nail bed?
rigidity
thickness
sensitivity
resiliency
51
Alkalis feel _______ on the skin
slippery
drying
gritty
hot
52
What type of surface is the best to ensure proper adhesion of a nail enhancement?
shiny
roughed up
wet
clean
53
What is a stable uniform blend of two or more substances?
solute
solvent
miscible liquid
solution
54
Acid-free primers have a slightly alkaline pH.
True
False
55
What does a product need to have in order to have a pH?
wax
oil
petroleum jelly
water
56
Acids turn litmus paper from:
red to blue
no color change
blue to red
yellow to green
57
An unstable mixture of two or more substances that typically not stay blended without a binder?
suspension
solution
surfactant
emulsion
58
What is an example of a metacrylate?
monomer liquids
monomer powders
nail adhesive
both blue/yellow answers